I would like to create an iPhone app which would use bluetooth or wifi to connect two iPhones together to be able to play music from one iPhone and use both iPhones as speakers, so the sound would be louder. For example, the person who wants to play the music will open the app, and his iPhone will be called "the hub" then, other iPhones can open the app, and search for the hub, and can join. Once joined, the person who started the hub session can play music, and it will come out of the other iPhones also. You should be able to add as many iPhones or iPods, iPads as you want. I would like to provide all the aesthetics of the app (looks of buttons, etc...). I would like to start with an iPhone version first. What do you think this will cost if I provide phtoshop files of all the screens? I am not putting in a budget, as I want to get your opinion on the cost. I also do not have a time limit.